Fig. 87: Cylinder Bore Cross Hatch Pattern
Courtesy of GENERAL MOTORS CORP.
1. When honing the cylinders, follow the manufacturer's recommendations for equipment use, cleaning, and
lubrication. Use only clean, sharp stones of the proper grade for the amount of material you remove. Dull,
dirty stones cut unevenly and generate excessive heat. Do not hone to final clearance with a coarse or
medium-grade stone. Leave sufficient metal so that all stone marks may be removed with fine-grade
stones. Perform final honing with a fine-grade stone, honing the cylinder to the proper clearance.
2. During the honing operation, thoroughly clean the cylinder bore. Repeatedly check the cylinder bore for
fit with the selected piston.
All measurements of the piston or the cylinder bore should be made with the components at normal room
temperature.
3. When honing a cylinder for fit to an oversize piston, first perform the preliminary honing with a 100 grit
stone.
4. Perform final cylinder honing with a 240 grit stone and obtain a 45 degree cross hatch pattern.
2004 Chevrolet Corvette
2004 ENGINE PERFORMANCE Engine Mechanical (Repair Instructions 2 Of 3) - 5.7L - Corvette
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